Greens, leeks and peas

Name: Greens, leeks and peas
Prep time: 5 min
Cook time: 15 min
Total time: 20 min
Yield: 4 servings
Cuisine: European
Ingredients: 1 pinch of Black pepper; 200 gr of Collard greens; 1 pinch of Fine sea salt; 1 clove of Garlic; 1 Leek; 150 gr of Shelled peas; 1 tbsp of Unsalted butter; ½ glass of Water; 1 dash of White wine vinegar